A VPN is an encrypted tunnel between your computer and the internet at large. They exist to allow employees access to internal intranets of a company to do work remotely.
That's it.
They are merely a tunnel and not a means to keep your data/metadata private. Any VPN provider you use can see what you access, how often, and for how long. It's not hard either; I do this in my own home from time to time with a program called Wireshark; cause I'm a nerd.
Just being on a VPN does not make your data private.
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